发明名称 MULTIDIRECTIONAL TIME-DIVISION MULTIPLEXING WIRELESS DATA COMMUNICATIONS SYSTEM
摘要 <p>A multidirectional time-division multiplexing wireless data communications system can prevent erroneous data from being transmitted through a data communications line even when a bit error has occurred in transmission data through interference, etc. occurring in a wireless area. An error correcting redundant bit, obtained by performing an error correcting code: operation by an error correcting code circuit on a low-speed continuous signal, is multiplexed to a specific vacant slot in a wireless-frame. A burst signal, converted by a continuous/burst signal conversion circuit through an interleaving operation, is multiplexed to a predetermined time slot, and transmitted to a wireless area. The burst signal is received by the burst/continuous signal conversion circuit, and converted into a continuous signal through a de-interleaving operation. A division circuit divides an error correcting code to generate a syndrome. Based on the syndrome, an error position detection circuit specifies bit error position in data, and an addition circuit corrects errors.</p>
申请公布号 CA2259751(A1) 申请公布日期 1999.07.19
申请号 CA19992259751 申请日期 1999.01.18
申请人 NEC CORPORATION 发明人 SHIMADA, HIDEAKI
分类号 H03M13/00;H04B7/212;H04J3/00;H04L1/00;H04W4/18;H04W28/04;H04W72/04;H04W74/04;H04W76/02;(IPC1-7):H04J3/00;H04Q7/00 主分类号 H03M13/00
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